Agony not refreshed with Sb:SS¿?

Hi, I have been fighting with an issue. Sometimes, it seems random , when I cast SB:SS I see that UA and Corruption are refreshed but no Agony.

I was using Nugrunnig that has a feature to see the strength of every dot and change color bar looking at this strength compared to you actual "strength". I change a little this add-on to get a more visual effect and put green or red bars regarding the strength of dots.

Then when Afflidots come , as this add-on do the same, I begin to use this add-on, thinking that Nugrunning or my changes to nugrunning was the failing, but with affdots I see the same.

I play with both add-ons, and both add-ons are configured to do the same, Red color to say me that I don't have to refresh because the dot applied is stronger than the new dot that I can apply with my current stats. Grey color to tell me that dot strength is the same than mine and Green color to say me that I have to refresh because I have more buffs than dots in the target.

and sometimes when I use SB:SS Agony don’t get refreshed , in both add-ons the color of the UA and corruption change but no agony and I have to recast agony manually.

both add-ons calculate the strength of the dot in a different way but both are telling me that sometimes agony is not refreshed by SB:SS. and this seems to happen when agony has more than 12 sec remaining .

it happens on occasion for me too, and i doubt it has anything to do with hit since im hitcapped and it still happens or rather not entirely bcoz of hit, it can be for any reason tbh, it can be bcoz of what Jessicka said, or Saveiro or it can even be linked to lack of mana, at this point i dont really know, all i know is that it still happens when im hitcapped, altho not very often, im mostly inclined to think that it has some to do with the implementation of soul shard system that for whatever reason, it maintains a 1% chance to miss, like the old days but it is really any1s guess.